DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerU1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle and each c ...
U1300 AV comm circuit
Description
U1300 is indicated when a communication signal malfunction occurs. U1300 is
indicated along with DTCs that
identify components connected to the AV control unit through communication
lines. Determine the possible
malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DIS ...
Clip list
Descriptions for Clips
Replace any clips which are damaged during removal or installation.
...